Post on 12-Feb-2016
description
VIVO and Linked Open DataDecember 13, 2010
Dean B. KrafftChief Technology Strategist and Director of ITCornell University Library
In September 2009, seven institutions received $12.2 million in funding from the National Center for Research Resources of the NIH to to enable National Networking with VIVO
• Originally developed at Cornell University in 2004 to support Life Sciences.• Reimplemented using RDF, OWL, Jena and SPARQL in 2007.• Now covers all faculty, researchers and disciplines at Cornell.• Implemented at University of Florida in 2007.• Underlying system in use at Chinese Academy of Sciences and Australian Universities.
VIVO Origins and Current Status
Stored in Resource Description Framework (RDF) triples.
Uses the shared VIVO Core Ontology to describe people, organizations, activities, publications, events, interests, grants, and other relationships
VIVO Core Ontology extends Friend-of-a-Friend (FOAF) and Bibliographic Ontology (BIBO)
Supports local ontology extensions for institution-specific needs.
Project will develop mappings to other standard ontologies
Data in VIVO
Detailed relationships for a researcher
Andrew McDonald
author of
has author
research area
research area for
academic staff in
academic staff
Susan Riha
Mining the record: Historical evidence for…
author of has author
teaches research area for
research area
headed byNYS WRI
Earth and Atmospheric Sciences
crop management
CSS 4830
Cornell’s supercomputers crunch weather data to help farmers manage chemicals
head offaculty appointment in
faculty members
taught by
featured in
features person
How can you get our RDF?
Currently get RDF associated with a single individual with that individual’s URI
Next release will have an RDF-enabled index page to allow crawling of all instances and access to all RDF
Should we make available a site map in some form? A download of all the triples?
We do not make available a public SPARQL endpoint – not reliable and too vulnerable to misuse
RDF for Dean B. Krafft: http://vivo.cornell.edu/individual/vivo/individual8772
VIVO enables authoritative data about researchers to join the Linked Data cloud
Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/
But if we’re authoritative, what do we link to?
Currently link to Geographic URIs in DBpedia Reluctant to link to uncontrolled information
about VIVO researchers (e.g. Wikipedia entries) Will assert Same-As relationship to author
identifiers (e.g. ORCID) Willing to link publications to authoritative
repositories (e.g. PubMed) Willing to link grants to authoritative sources
(e.g. NIH Reporter), but they’ll need to provide permanent URIs
Willing to link to Medical Subject Headings (MESH) ontology terms (currently fixed URIs, but not RDF) and other large public ontologies/controlled vocabularies
VIVO/LOD Challenges Privacy: VIVO aggregates a lot of information about
people and institutions – it’s all nominally public, but … Using LOD ontologies: our approach is to define what
we need, use what is most obvious, and let others do the mapping
Presentation: Faculty may want to present a subset of publications and grants – how does the presentation version differ from the LOD version?
Dirty data: We’ve just spent six months cleaning and disambiguating people, terms, publications, etc. from Activity Insight
Provenance: Internally, we use private graphs to associate data with sources, but hard to expose this information as LOD
Temporality: Easy to state a fact – harder to state when it was true
VIVO/LOD Opportunities Usability: The VIVO Ontology makes all of an
institution’s faculty/researcher information available in a self-describing, structured format
Reusability: Information can be repurposed within the institution: department portals, entrepreneurship portal, faculty impact statements, graduate education portal
Extensibility: University of Melbourne has created a data registry system based on VIVO with an extended ontology
Integration: Used OpenCalais developer libraries to annotate Cornell news release with VIVO URIs as a test
Delivery: VIVO is a source for faculty/researcher profiles and context for other systems: data curation; research facilities/resources; publications